Can an opponent play Get Excited in response to Last Breath being played?

Ruling: Get Excited cannot be played in response to Last Breath because Get Excited is an Action spell, not a Reaction spell. Only Reaction spells can be played in response to other spells.

Nuances:

• Only Reactions can respond to Actions or other Reactions
• If Last Breath's target dies before it resolves, Last Breath will not do anything